53662405 has 16 divisors (see below), whose sum is σ = 65608704. Its totient is φ = 42128320.

The previous prime is 53662393. The next prime is 53662423. The reversal of 53662405 is 50426635.

53662405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-53662405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78927 + ... + 79603.

It is an arithmetic number, because the mean of its divisors is an integer number (4100544).

Almost surely, 2^53662405 is an apocalyptic number.

It is an amenable number.

53662405 is a deficient number, since it is larger than the sum of its proper divisors (11946299).

53662405 is a wasteful number, since it uses less digits than its factorization.

53662405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 53662405 is about 7325.4627840158. The cubic root of 53662405 is about 377.1869954887.

The spelling of 53662405 in words is "fifty-three million, six hundred sixty-two thousand, four hundred five".